Diaryl (pyridinio and isoquinolinio) boron insecticidal and acaricidal agents

Abstract

There are provided insecticidal and acaricidal diaryl(pyridinio and isoquinolinio)boron compounds having the structural formula ##STR1## Further provided are compositions and methods comprising those compounds for the protection of plants from attack by insects and acarina.

I claim: 
     
       1. A method for controlling insects and acarina which comprises contacting said insects and acarina, their breeding ground, food supply or habitat with an insecticidally or acaricidally effective amount of a compound having the structural formula ##STR15## wherein X and Y are each independently hydrogen, halogen, C 1  -C 8  alkyl, C 1  -C 8  haloalkyl, C 1  -C 8  alkoxy or C 1  -C 8  haloalkoxy; m and n are each independently an integer of 0, 1, 2 or 3;   R is C 1  -C 8  alkyl, C 1  -C 8  alkoxy, halogen or hydroxy;   R 1 , R 2  and R 3  are each independently hydrogen, C 1  -C 8  alkyl, C 1  -C 8  haloalkyl, C 1  -C 8  alkoxy, C 1  -C 8  haloalkoxy, halogen, cyano, nitro, C(O)R 4 , NR 5  R 6  or phenyl optionally substituted with one to three halogen, C 1  -C 4  alkyl, C 1  -C 4  haloalkyl, C 1  -C 4  alkoxy, C 1  -C 4  haloalkoxy or NR 5  R 6  groups, and when taken together, R 2  and R 3  may form a ring in which R 2  R 3  is represented by the structure: --(CH 2 ) p  -- or ##STR16## R 4 , R 5  and R 6  are each independently hydrogen or C 1  -C 4  alkyl; p is an integer of 3 or 4; and   L, M, Q and W are each independently hydrogen, halogen, C 1  -C 4  alkyl, C 1  -C 4  haloalkyl, C 1  -C 4  alkoxy, C 1  -C 4  haloalkoxy or nitro.   
     
     
       2. The method according to claim 1 wherein X and Y are each independently hydrogen, halogen, C 1  -C 8  alkyl or C 1  -C 8  haloalkyl;   m and n are each independently an integer of 0, 1 or 2;   R 1 , R 2  and R 3  are each independently hydrogen, C 1  -C 8  alkyl, C 1  -C 8  haloalkyl, halogen, c phenyl, and when taken together, R 2  and R 3  may form a ring in which R2R 3  is represented by the structure: --(CH 2 ) 4  -- or ##STR17## R 4  is C 1  -C 4  alkyl; and L, M, Q and W are each independently hydrogen, halogen, C 1  -C 4  alkyl, C 1  -C 4  haloalkyl or nitro.   
     
     
       3. The method according to claim 2 wherein X and Y are each independently hydrogen, halogen or C 1  -C 8  alkyl;   R is C 1  -C 8  alkyl;   R 1 , R 2  and R 3  are each independently hydrogen, C 1  -C 8  alkyl, halogen, cyano, C(O)R 4  or phenyl, and when taken together, R 2  and R 3  may form a ring in which R 2  R 3  is represented by the structure --(CH 2 ) 4  -- or --CL═CH--CH═CH--; and   L is hydrogen or nitro.   
     
     
       4. The method according to claim 3 wherein X and Y are each independently hydrogen, halogen or C 1  -C 4  alkyl;   m and n are each independently an integer of 0, 1 or 2;   R is C 1  -C 4  alkyl; and   R 1 , R 2 , and R 3  are each independently hydrogen, C 1  -C 4  alkyl, halogen, or phenyl, and when taken together R 2  and R 3  may form a ring in which R 2  R 3  is represented by the structure: --CH═CH--CH═CH--.